I like Taylor Kitsch, he had the right look for a younger Gambit and had some good scenes, but I don't think the portrayal convinced me that he'd work in a solo film, whereas as Channing is a little more robust and could go toe-to-toe in a fight with a Wolverine or a Sabretooth, where Taylor looked like a mismatch in those scenes. A rebooted Gambit sets him free from the 1970s/80s timeline trap. A present day Gambit has a brighter future.
I have no idea where this Gambit solo is headed. I'm expecting that they'll change a lot of his origin story, it may not have Guilds, it may be something completely fresh. I would like the ending to have a connection to the X-Men, maybe have someone like Rogue or Wolverine pop up and recruit him, or maybe have Cable convince him to join X-Force.